BENTON, Ky. (AP) - A 15-year-old student opened fire with a handgun inside his rural Kentucky high school Tuesday, killing two classmates, injuring 17 others and sending hundreds fleeing for safety.
 
Police were seen leading a teenager away in handcuffs. It was the nation's first fatal school shooting of 2018.
 
The shooter will be charged with murder and attempted murder, Kentucky State Police Lt. Michael Webb said.
 
"He was apprehended by the sheriff's department here on site, at the school, thankfully before any more lives could be taken," Webb said.
 
Police did not release any identities, nor did they describe a motive. Webb said detectives are looking into his home and background.
 
Students ran for their lives as the student began shooting inside an atrium just before morning classes would have begun at Marshall County High School. Many jumped into cars or ran down the highway, some not stopping until they reached a McDonald's restaurant more than a mile away. Parents left their cars on both sides of an adjacent road, desperately trying to find their teenagers.
 
"They was running and crying and screaming," said Mitchell Garland, who provided shelter to between 50 and 100 students inside his nearby business. "They was just kids running down the highway. They were trying to get out of there."
 
A half-dozen ambulances and numerous police cars converged on the school, along with officers in black fatigues carrying assault rifles. Federal authorities responded, and Sen. Mitch McConnell sent staffers. Gov. Matt Bevin rushed from the Capitol to the scene.
 
Two 15-year-olds were killed: A girl died at the scene, and a boy died later at a hospital, the governor said, adding that all of the victims are believed to be students. He said 15 of those injured suffered bullet wounds. Five were flown about 120 miles (193 kilometers) to Nashville, Tennessee's Vanderbilt University Medical Center, spokeswoman Tavia Smith said.
 
"This is a wound that is going to take a long time to heal," Bevin said.
 
The attack marked the year's first fatal school shooting, 23 days into 2018, according to data compiled by the Gun Violence Archive, which relies on media reports and other information. The anti-violence group Everytown for Gun Safety has counted at least 283 shootings at schools since 2013.
 
Bevin said earlier in a statement that "It is unbelievable that this would happen in a small, close-knit community like Marshall County."
 
Marshall County High School is about 30 minutes from Heath High School in Paducah, Kentucky, where a 1997 mass shooting killed three and injured five. Michael Carneal, then 14, opened fire there about two years before the fatal attack at Columbine High School in Colorado, ushering in an era when mass school shootings have become much more common.
 
Meanwhile, in the small North Texas town of Italy, a 15-year-old girl was recovering Tuesday after police said she was shot by a 16-year-old classmate in her high school cafeteria on Monday, sending dozens of students scrambling for safety.
 
Tuesday's shooting happened as students gathered in a common area, just before the day's first classes. Sixteen-year-old Lexie Waymon said she and a friend were talking about the next basketball game, makeup and eyelashes when gunshots pierced the air.
 
"I blacked out. I couldn't move. I got up and I tried to run, but I fell. I heard someone hit the ground. It was so close to me," Waymon said. "I just heard it and then I just, everything was black for a good minute. Like, I could not see anything. I just froze and did not know what to do. Then I got up and I ran."
 
Waymon did not stop running, not even when she called her mom to tell her what happened. She made it to the McDonald's, her chest hurting, struggling to breathe.  "All I could keep thinking was, 'I can't believe this is happening. I cannot believe this is happening,'" she said.
 
It was chaotic outside the school as parents and students rushed around trying to find each other, said Dusty Kornbacher, who owns a nearby floral shop. "All the parking lots were full with parents and kids hugging each other and crying and nobody really knowing what was going on," he said.
 
Barry Mann said his 14-year-old son was put on a bus and taken to another school to be picked up.
 
"He gave me a call as soon as he run out the door and I didn't know what was happening to him," he told the AP. "It sounded like his heart was in his throat."
 
Garland said his son, a 16-year-old sophomore, jumped into someone's car and sped away before joining others inside his business.
 
"Everyone is just scared. Just terrified for their kids," Garland said. "We're a small town and we know a lot of the kids."